Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Mining Co LtdfiledCriticalSumitomo Metal Mining Co Ltd
Priority to JP19384281UpriorityCriticalpatent/JPS5899100U/ja
Publication of JPS5899100UpublicationCriticalpatent/JPS5899100U/ja
Application grantedgrantedCritical
Publication of JPS6136400Y2publicationCriticalpatent/JPS6136400Y2/ja